Morphology tailoring and enhanced electrochemical properties of Cd–Zn co-doped NiO nanorods for high performance supercapacitor |
| |
| Affiliation: | 1. Department of Electronics and Communication Engineering, Integral University, Lucknow, U.P., 226026, India;2. Sensors and Materials Research Laboratory, Department of Physics, University of Lucknow, Lucknow, U.P., 226007, India;3. Nanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P., 226025, India;1. Department of Physics, North Orissa University, Baripada 757003, India;2. Department of Applied Physics and Ballistics, Fakir Mohan University, Balasore 756019, India;3. UGC-DAE Consortium for Scientific Research, Indore 452017, India;4. UGC-DAE Consortium for Scientific Research, Mumbai Centre, R-5 Shed, BARC, Mumbai 400085, India;5. Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, India;1. Department of Physics, Annamalai University, Annamalai Nagar 608002, Tamil Nadu, India;2. King Abdullah Institute For Nanotechnology, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia;3. Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia;1. College of Arts and Sciences, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China;2. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Engineering and Technology Research Center of Comprehensive Utilization of Salt Lake Resources, Qinghai Institute of Salt Lake, Chinese Academy of Sciences, Xining 810008, PR China |
| |
| Abstract: | A systematic approach has been introduced to synthesize Cd–Zn co-doped NiO nanostructures with different ratios such as Cd0.07Zn0.03NiO, Cd0.05Zn0.05NiO, Cd0.03Zn0.07NiO and Cd0.01Zn0.09NiO for supercapacitor applications. The XRD studies has confirmed the phase purity with average crystallite size of 40 nm. The SEM characterization has shown that the morphology of nanostructures was tuned from particles to nano-rods structure with increasing the at. % concentration of Zn doping. Optical properties revealed that band gap and recombination rate have strong co-relation with specific capacitance. The CV results have confirmed the pseudocapacitive nature of the as prepared nanostructures and maximum specific capacitance (1485.19 Fg-1) was measured for Cd0.03Zn0.07NiO which is superior than numerous reported values of NiO. The GCD results of Cd0.03Zn0.07NiO performed at 1 A/g scan rate, exhibited excellent charging-discharging ability with high cyclic retention of 82.8%. High capacitance and superior stability of Cd0.03Zn0.07NiO material indicate it as a potential candidate for supercapacitor applications. |
| |
| Keywords: | NiO Cd–Zn co-doped NiO Hydrothermal Electrochemical properties Supercapacitor |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
